The Scofield Bible Commentary, by Cyrus Ingerson Scofield, [1917], at sacred-texts.com
tread
See "Times of the Gentiles."
(See Scofield) - (Luk 21:24).
God
Adonai. (Zac 4:14).
great city
That is, Jerusalem.
angel
(See Scofield) - (Heb 1:4).
world
Greek, "kosmos", means "world-system". (Joh 7:7).
(See Scofield) - (Rev 13:8).